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The technical information and instructions provided herein below are
intended for the installer so that the unit may be installed correctly
and safely.
The installation and initial start-up of the boiler must be by a CORGI
Approved Installer in compliance with the installation standards
currently in effect, as well as with any and all local health and safety
standards i.e. CORGI.
This appliance must be installed by a competent installer in
accordance with the current Gas Safety (installation & use)
Regulations.
The installation of this appliance must be in accordance with the
relevant requirements of the current Gas Safety (installation & use)
Regulations, the Local Building Regulations, the current I.E.E. Wiring
Regulations, the byelaws of the local water authority, and in Scotland,
in accordance with the Building Standards (Scotland) Regulation and
Health and Safety document No. 635 “Electricity at work regs. 1989”.
Installation should also comply with the following British Standard
Codes of Practice:
2. INSTALLATION
2.1. R
EFERENCE STANDARDS
Low pressure
pipes BS 6891 1988
Boilers of rated input
not exceeding 60 kW BS 6798 1987
Forced circulation hot
water system BS 5449 1990
Installation of gas hot water
supplies for domestic purposes
( 2
nd
family gases) BS 5546 1990
Flues BS 5440-1 1990
Air supply BS 5440-2 1989
3
275
24 MFFI
LEGEND:
1. Flue connector
2. Heating flow temperature probe
3. Mixer
4. Condensate collector
5. Expansion vessel
6. Condensate trap (tube)
7. Condensate trap
8. Diverter valve
9. Main circuit flow switch
10. Domestic hot water temperature probe
11. Control panel
12. Gas valve
13. Domestic hot water flow switch
14. Drain valve
15. Safety valve (3 bar)
16. Secondary heat exchanger
17. Circulation pump with automatic air release valve
18. Heating return temperature probe
19. Sealed combustion chamber
20. Combustion chamber inspection hatch
21. Fan
22. Ignition and detection electrode
23. Main heat exchanger (aluminium)
24. Automatic by-pass
25. Silencer
F
IG. 1.1
1.3. OVERALL VIEW
24 RFFI SYSTEM